Cast Iron Pipes vs Copper: Which Lasts Longer in Older Homes?

When weighing durability in older homes, a copper repipe is often compared to traditional cast iron. Cast iron offers strength and soundproofing but is prone to rust, scaling, and heavy maintenance over time. Copper, on the other hand, is lighter, resistant to corrosion, and maintains water quality more effectively. While copper can be more expensive upfront, its long lifespan and reliability often make it the smarter investment for homeowners. In addition, copper piping adapts well to modern water systems and resists many of the issues associated with older infrastructure. For homes that need dependable performance, understanding the differences can guide the best choice for long-term value.